Alarm and sash-lock.



L. B. ROBINSON.

ALARM AND SASH LOCK.

APPLICATION FILED APR. 23, 1910.

1,017,804, Patented Feb. 20, 1912.

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LAWRENCE E. ROBINSON, OF COFFEYVILLE, KANSAS.

ALARM AND SASI-LLOGK.

Application filed April 23, 1910.

Specification of Letters Patent.

Patented Feb. 20, 1912.

Serial No. 557,246.

To all whom it may concern:

Be it known that I, LAWRENCE E. Rois- INSOX, a citizen of the UnitedStates, residing at Coffeyville, county of lvlontgomery, State ofKansas, have invented certain new and useful Improvements in Alarms andSash-Locks, of which the following is a specification, reference beinghad therein to the accompanying drawing.

This invention relates to an alarm and sash lock and particularly to astructure adapted to actuate an alarm in case of fire or when a windowis opened and also to permit the opening of a window for ventilatingpurposes.

The invention has for an object to provide an alarm mechanism providedwith an actuating cable having tension means and a loop upon said cableadapted to be released by a movable part.

Other and further objects and advantages of the invention will behereinafter set forth and the novel features defined by the appendedclaims.

In the drawing-Figure 1 is a vertical section of a window showing theinvention applied thereto, the alarm mechanism being in elevation; Fig.2 is a cross section through the alarm mechanism upon the line 22 ofFig. 1; Fig. 3 is a top plan of the sash lock bolt; Fig. 1 is a verticalsection thereof in looking position; and Fig. 5 is a modifiedapplication of the invention to the latch of a door.

Like numerals of reference refer to like parts in the several figures ofthe drawing.

The invention is designed for any desired application in which theactuating weight for the alarm is held under tension, but asillustrating one application thereof, it is he sashes of a window frame10. The lower sash 11 thereof is provided with a casing 12 securedthereto within which the bolt 13 is rotatably mounted. This bolt whendrawn outward,

as shown in Fig. 3, rests upon the midrail ofthe lower sash 12 and doesnot contact with the sash 1 1. When turned into a vertical position, asshown in Figs. 3 and 4:, the angular end 15 of this bolt is disposed inalinement with the keepers 16 and 17 carried by the upper sash. Theouter end of the bolt is formed with a handle 18 adapted to seat in arecess 19 of the keeper 12 so as to retain the bolt in vertical positionas shown in Fig 4. This bolt cooperates with the keeper 1'? secured tothe upper sash 14 and when the parts are in locking position, extendsinto this keeper if the lower sash, by which the bolt is carried, beraised. The keeper 1'? is provided with a plug 20 adapted to be insertedin the upper end of the keeper 17. This plug is connected to a fusiblepor tion 21 which may constitute a fire alarm when the temperature risesto a point to fuse this portion of the cable. The remainder of the cable22 may be of any desired construc tion and is provided with acounterbalancing weight 23 and with an actuating weight 2 1 by whichtension thereon is constantly applied. The connecting cable 22 isprovided at its free end with a loop portion 25 which is adapted forapplication in various constructions, one illustration thereof beingshown in Figs. 1 and 4, where the loop embraces the plug 20 so that whensaid plug is released from its keeper, the alarm mechanism will beactuated and thus provide a combination burglar and fire alarm with aventilating sash look.

A desirable form of alarm mechanism is shown in Fig. 1 wherein the bell26 is mounted at 27 upon the support 28, while the hammer 29 thereof iscarried by a yoke 30 pivoted at 31 and adapted to engage a crank pin 32carried by the wheel 33 D'lOUHtGCl upon the driving shaft. This wheel isactuated by means of the cable 22 which extends thereover to the wei ht2 which provides the necessary gravity force to prop erly operate theparts.

In the application of the invention, the modified form thereof is shownin Fig. 5 wherein the loop 25 is adapted to be inserted between a doorand its casing so that the bolt 3% carried by a door 36 is adapted toenter the door casing 35 and to extend through this loop. As soon asthis bolt is withdrawn for the purpose of opening the do r, the loopwill be released and removed from contact therewith through the weightedportion 24: of the cable 22. In the application of the invention, it isdesirable to retain the cable 22 under tension either in connec tionwith a sash lock or other mechanism to be released.

In 7 the operation of the invention, as shown in Fig. 1, if the lowersash 11 be raised, the bolt 13 carried thereby will be projected throughthe keepers 16 and 17 and force the plug 20 out of position from thelatter keeper so as to release the loop 25 and permit the weight 24 torotate the wheel 83 and thus actuate the bell hammer 29 to continuouslysound an alarm until all of the cable 22 has passed over said wheel. Itwill be apparent that the same result can be obtained by the use of theplug 20 without the loop 25 being inserted thereover and also that thisloop when embracing any releas able part, such as the latch of a doorwill operate in a similar manner to sound the alarm the cable is heldunder tension and will automatically operate as soon as the loop, orplug is released from the part to which it is attached.

It will be apparent that the invention presents a simple, eflicient andeconomically constructed device adapted for both a tire and burglaralarm and also for a ventilating sash lock which will permit a partialraising of one sash while an attempt to raise it further will operatethe alarm mechanism.

Having described my invention and set forth its merits what I claim anddesire to secure by Letters Patent is- 1. In a device of the classdescribed, a cable provided with a weight at both ends, an alarm deviceactuated by frictional contact with said cable, a retaining loop at oneend of said cable, and a releasing device carried by a movable memberand cooperating with said loop.

2. In a device of the class described, a cable provided with tensionmeans, an alarm device connected for operation by said cable byfrictional contact therewith, a retaining loop at one end of saidcableneleasirig means extending through said loop for retaining saidcable, and a movable member adapted to actuate said releasing means.

3. In a device of the class described, a cable provided with a weight atboth ends, an alarm device having a member connected with said cable, aretaining loop carried by said cable, a releasing device for detachablysecuring said cable, a fusible port-ion connected to said cable, and amovable mem ber adapted to actuate said releasing device.

4;. In a device of the class described, a

cable provided with tension means, an alarm device connected foroperation by said cable by frictional contact therewith, a retainingloop at one end of said cable, a plug adapted to be engaged by saidloop, a keeper to receive said plug, and independently movable means toengage and release said plug from said keeper.

5. In a device of the class described, a cable provided with. tensionmeans, an alarm device connected for operation by said cable, aretaining loop at one end of said cable, a plug to be engaged by saidcable, a keeper adapted to receive said plug, and a bolt mounted upon amovable part to enter said keeper and release said plug.

6. In a device of the kind described, the combination with a wheel foroperating an alarm, of a cable passing over said wheel and havingfrictional engagement therewith for rotating said wheel, weights carriedby the respective ends of said cable, a loop connected to one of theweights of said cable, a detachably mounted member for retaining saidloop, and a movable member for detaching said detachable member.

7. In a device of the class described, a movable member having apivotally mounted bolt thereon, a cooperating member provided with akeeper, a cable provided with a loop, a plug mounted in said keeper andadapted to be embraced by said loop, and tension means connected to saidcable to operate an alarm mechanism when said plug is released.

8. The combination with an alarm, of a weighted cable for operating saidalarm, a loop connected to one end of said cable, a detachable memberfor holding said loop, and a movable member for detaching saiddetachable member.

In testimony whereof I atlix my signature in presence of two witnesses.

LANRENCE E. ROBINSON.

Vitnesses J. B. ELLIS, SnBAs'rIAN Hal-IN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

